atomizer

Masoudi

I want to modeling spray of fluid from atomizer. I know that the flow regime in the atomizer is turbolence. I want to model this case by "VOF" and use the K-Epsilon standard model in the FLUENT package. But I dont know what kind of "Turbulence Specification Method"is used in this case and what value should be assigned to their parameters in the inlet and outlet of atomizer :

"K & Epsilon" or "Intensity & Lenght Scale" or "Intensity & viscosity Ratio" or "Intensity & Hydraulic Diameter"

Thanks for your helps

H.Masoudi